Longitudinal, lateral, vertical, and temporal thermal heterogeneity in a large impounded river: Implications for cold-water refuges
Francine H. Mejia, Christian E. Torgersen, Eric K Berntsen, Joseph R Maroney, J M Connor, Aimee H. Fullerton, Joseph L. Ebersole, Mark L Lorang
2020, Remote Sensing (12)
Dam operations can affect mixing of the water column, thereby influencing thermal heterogeneity spatially and temporally. This occurs by restricting or eliminating connectivity in longitudinal, lateral, vertical, and temporal dimensions. We examined thermal heterogeneity across space and time and identified potential cold-water refuges for salmonids in a large impounded river...
Time-dependent accumulation of Cd, Co, Cu, Ni, and Zn in mayfly and caddisfly larvae in experimental streams: Metal sensitivity, uptake pathways, and mixture toxicity
Laurie S. Balistrieri, Christopher A. Mebane, Travis S. Schmidt
2020, Science of the Total Environment (732)
Conceptual and quantitative models were developed to assess time-dependent processes in four sequential experimental stream studies that determined abundances of natural communities of mayfly and caddisfly larvae dosed with single metals (Cd, Co, Cu, Ni, Zn) or multiple metals (Cd+Zn, Co+Cu, Cu+Ni, Cu+Zn, Ni+Zn, Cd+Cu+Zn, Co+Cu+Ni, Cu+Ni+Zn). Metal mixtures...
Trophodynamics of per- and polyfluoroalkyl substances in the food web of a large Atlantic slope river
T. N. Penland, W. G. Cope, Thomas J. Kwak, M.J. Strynar, C. A. Grieshaber, R. J. Heise, F.W. Sessions
2020, Environmental Science and Technology (54) 6800-6811
Per- and polyfluoroalkyl substances (PFASs) have attracted scientific and regulatory attention due to their persistence, bioaccumulative potential, toxicity, and global distribution. We determined the accumulation and trophic transfer of 14 PFASs (5 short-chain and 9 long-chain) within the food web of...
Discovery of a reproducing wild population of the swamp eel Amphipnous cuchia (Hamilton, 1822) in North America
Frank Jordan, Leo Nico, Krystal Huggins, Peter J. Martinat, Dahlia A. Martinez, Victoria L. Rodrigues
2020, BioInvasions Records (9) 367-374
We report discovery of an established population of the Asian swamp eel Amphipnous cuchia (Hamilton, 1822) in Bayou St. John, an urban waterway in New Orleans, Louisiana, USA. This fish, commonly referred to as cuchia (kuchia), is a member of the family Synbranchidae and is native to southern and southeastern Asia. Recently-used...
Magnitude and frequency of floods in Alabama, 2015
Brandon T. Anderson
2020, Scientific Investigations Report 2020-5032
To improve flood-frequency estimates at rural streams in Alabama, annual exceedance probability flows at gaged locations and regional regression equations used to estimate annual exceedance probability flows at ungaged locations were developed by using current geospatial data, new analytical methods, and annual peak-flow data through September 2015 at 242 streamgages...
The importance of U.S. Geological Survey water-quality super gages
Angela S. Crain
2020, Fact Sheet 2020-3019
Super gages are an important tool providing real-time, continuous water-quality data at streamgages or groundwater wells. They are designed to address specific water-resource threats such as water-related human health issues including harmful algal blooms, floods, droughts, and hazardous substance spills. In addition, super gages improve our understanding of the effects...
Report of the River Master of the Delaware River for the period December 1, 2010–November 30, 2011
Vincent J. DiFrenna, William J. Andrews, Kendra L. Russell, J. Michael Norris, Robert R. Mason, Jr.
2020, Open-File Report 2020-1020
A Decree of the Supreme Court of the United States, entered June 7, 1954, established the position of Delaware River Master within the U.S. Geological Survey. In addition, the Decree authorizes diversion of water from the Delaware River Basin and requires compensating releases from certain reservoirs, owned by New York...
Robust ecological drought projections for drylands in the 21st century
John B. Bradford, Daniel Rodolphe Schlaepfer, William K. Lauenroth, Kyle A. Palmquist
2020, Global Change Biology (26) 3906-3919
(Bradford) Dryland ecosystems may be especially vulnerable to expected 21st century increases in temperatures and aridity because they are tightly controlled by patterns of moisture availability. However, climate impact assessments in drylands are difficult because ecological dynamics are dictated by drought conditions that are difficult to define and complex to...
Book review: Proceedings of the First International Snakehead Symposium
Stephen Walsh
2020, Transactions of the American Fisheries Society (149) 364-365
Snakehead fishes (family Channidae) are among the most maligned aquatic invasive species in the USA and some other countries where they have been introduced outside of their native range in Asia and Africa. Nevertheless, snakeheads continue to be widely exploited in the live‐food trade in aquaculture and wild‐capture fisheries, are...
Modelling grass carp egg transport using a 3-D hydrodynamic river model: The role of egg retention in dead zones on spawning success
Tej Heer, Mathew G. Wells, P. Ryan Jackson, Nicholas E. Mandrak
2020, Canadian Journal of Fisheries and Aquatic Sciences (77) 1379-1392
Invasive grass carp (Ctenopharyngodon idella) are known to spawn in the Sandusky River, Ohio, USA, within the Great Lakes Basin, and are threatening to expand throughout the Great Lakes. Successful spawning is thought to require that eggs remain in suspension until hatching, which depends on river hydrodynamics and temperature-dependent egg...
Salt flushing, salt storage, and controls on selenium: A 31-year mass-balance analysis of an irrigated, semiarid valley
Carleton R. Bern, Michael J. Holmberg, Zachary D. Kisfalusi
2020, Journal of the American Water Resources Association (56) 647-668
Salinity, selenium, and uranium pose water‐quality challenges for the Arkansas River in southeastern Colorado and other rivers that support irrigation in semiarid regions. This study used 31 years of continuous discharge and specific conductance (SC) monitoring data to assess interannual patterns in water quality using mass balance on a 120‐km reach...
Comparing environmental flow implementation options with structured decision making: Case study from the Willamette River, Oregon
J. Tyrell DeWeber, James T. Peterson
2020, Journal of the American Water Resources Association (56) 599-614
Many frameworks have been used to identify environmental flows for sustaining river ecosystems or specific taxa in the face of widespread flow alteration for human use. However, these methods mostly focus on identifying suitable flows and largely ignore the important links between management actions, resulting flows, flow variability, and ecosystem...
Climate change causes river network contraction and disconnection in the H.J. Andrews Experimental Forest, Oregon, USA
Adam S Ward, Steven M Wondzell, Noah Schmadel, Skuyler P Herzog
2020, Frontiers in Water (2)
Headwater streams account for more than 89% of global river networks and provide numerous ecosystem services that benefit downstream ecosystems and human water uses. It has been established that changes in climate have shifted the timing and magnitude of observed precipitation, which, at specific gages, have been directly linked...
Groundwater quality in the Redding–Red Bluff shallow aquifer study unit of the northern Sacramento Valley, California
Jennifer S. Harkness, Jennifer L. Shelton
2020, Fact Sheet 2020-3025
Groundwater provides more than 40 percent of California’s drinking water. To protect this vital resource, the State of California created the Groundwater Ambient Monitoring and Assessment (GAMA) Program. The Priority Basin Project of the GAMA Program provides a comprehensive assessment of the State’s groundwater quality and increases public access to...
Mitigating land subsidence in the Coachella Valley, California, USA: An emerging success story
Michelle Sneed, Justin T. Brandt
2020, Proceedings of the International Association of Hydrological Sciences (382) 809-813
Groundwater has been a major source of agricultural, municipal, and domestic water supply since the early 1920s in the Coachella Valley, California, USA. Land subsidence, resulting from aquifer-system compaction and groundwater-level declines, has been a concern of the Coachella Valley Water District (CVWD) since the mid-1990s. As a result, the...
Carbon sources in the sediments of a restoring vs. historically unaltered salt marsh
Judith Z. Drexler, Melanie J. Davis, Isa Woo, Susan E.W. De La Cruz
2020, Estuaries and Coasts (43) 1345-1360
Salt marshes provide the important ecosystem service of carbon storage in their sediments; however, little is known about the sources of such carbon and whether they differ between historically unaltered and restoring systems. In this study, stable isotope analysis was used to quantify carbon sources in...
Detection and measurement of land subsidence and uplift using interferometric synthetic aperture radar, San Diego, California, USA, 2016–2018
Justin T. Brandt, Michelle Sneed, Wesley R. Danskin
2020, Conference Paper, Proceedings of the International Association of Hydrological Sciences
Land subsidence associated with groundwater-level declines is stipulated as an “undesirable effect” in California’s Sustainable Groundwater Management Act (SGMA), and has been identified as a potential issue in San Diego, California, USA. The United States Geological Survey (USGS), the Sweetwater Authority, and the City of San Diego, undertook a cooperative...
The Missoula and Bonneville floods—A review of ice-age megafloods in the Columbia River basin
Jim E. O'Connor, Victor R. Baker, Richard B. Waitt, Larry N Smith, Charles M. Cannon, David L. George, Roger P. Denlinger
2020, Earth-Science Reviews (208)
The Channeled Scabland of eastern Washington State, USA, brought megafloods to the scientific forefront. A 30,000-km2 landscape of coulees and cataracts carved into the region’s loess-covered basalt attests to overwhelming volumes of energetic water. The scarred landscape, garnished by huge boulder bars and far-travelled ice-rafted erratics, spurred J Harlen Bretz’s...
Design and methods of the California stream quality assessment (CSQA), 2017
Jason T. May, Lisa H. Nowell, James F. Coles, Daniel T. Button, Amanda H. Bell, Sharon L. Qi, Peter C. Van Metre
2020, Open-File Report 2020-1023
During 2017, as part of the National Water-Quality Assessment Project, the U.S. Geological Survey conducted the California Stream Quality Assessment to investigate the quality of streams in the Central California Foothills and Coastal Mountains ecoregion, United States. The goal of the California Stream Quality Assessment study was to assess the...
Mapping perceived social values to support a respondent-defined restoration economy: Case study in southeastern Arizona, USA
Roy E. Petrakis, Laura M. Norman, Oliver Lysaght, Benson C. Sherrouse, Darius J. Semmens, Kenneth J. Bagstad, Richard Pritzlaff
Oliver Lysaght, Benson C. Sherrouse, Darius J. Semmens, Kenneth J. Bagstad, Richard Pritzlaff, editor(s)
2020, Air, Soil and Water Research (13)
Investment in conservation and ecological restoration depends on various socioeconomic factors and the social license for these activities. Our study demonstrates a method for targeting management of ecosystem services based on social values, identified by respondents through a collection of social survey data. We applied the Social Values for Ecosystem...
Potentiometric surface and hydrologic conditions of the South Coast aquifer, Santa Isabel area, Puerto Rico, March–April, 2014
Felix A. Ramos, Alex A. Santiago
2020, Scientific Investigations Map 3455
A potentiometric surface map of the South Coast aquifer near Santa Isabel, Puerto Rico, was created from data collected during a synoptic survey of groundwater levels at 55 wells from March 31 to April 17, 2014. Measured groundwater level values ranged from −22.8 to 185.4 feet above mean sea level....
Near-field remote sensing of surface velocity and river discharge using radars and the probability concept at 10 USGS streamgages
John W, Fulton, Christopher A. Mason, Jack R. Eggleston, Matthew J. Nicotra, C.-L. Chiu, Mark F. Henneberg, Heather Best, Jay Cederberg, Stephen R. Holnbeck, R. Russell Lotspeich, Christopher Laveau, Tommaso Moramarco, Mark E. Jones, Jonathan J Gourley, Danny Wasielewski
2020, Remote Sensing (12)
Near-field remote sensing of surface velocity and river discharge (discharge) were measured using coherent, continuous wave Doppler and pulsed radars. Traditional streamgaging requires sensors be deployed in the water column; however, near-field remote sensing has the potential to transform streamgaging operations through non-contact methods in the U.S. Geological Survey (USGS)...
Acoustic Sediment Estimation Toolbox (ASET): A software package for calibrating and processing TRDI ADCP data to compute suspended-sediment transport in sandy rivers
Lucas Gerardo Dominguez Ruben, Ricardo Szupiany, Francisco Latosinski, Cecilia Lopez Weibel, Molly S. Wood, Justin A. Boldt
2020, Computers & Geosciences (140) Article 104499
Quantifying suspended-sediment transport is critical for a variety of disciplines related to the management of water resources. However, the number of gauging stations and monitoring networks in most rivers around the world is insufficient to improve understanding of river dynamics and support water resource management decisions. This is mainly due...
Identifying candidate reference reaches to assess the physical and biological integrity of wadeable streams in different ecoregions and among stream sizes
Craig P. Paukert, Ethan R. Kleeklamp, Ralph William Tingley
2020, Ecological Indicators (111)
Efforts to quantify disturbances to aquatic systems often use landscape-level metrics, presumably linked to ecological integrity, but fewer studies have directly linked ecological integrity to instream habitat, and applied these results to unsampled stream reaches throughout a landscape. We developed a flexible, quantitative approach that characterizes stream impairment across a...
Hydrologically induced deformation in Long Valley Caldera and adjacent Sierra Nevada
Francesca Silverii, Emily K. Montgomery-Brown, Adrian Borsa, Andrew J. Barbour
2020, Journal of Geophysical Research (125)
Vertical and horizontal components of GNSS displacements in the Long Valley Caldera and adjacent Sierra Nevada range show a clear correlation with hydrological trends at both multiyear and seasonal time scales. We observe a clear vertical and horizontal seasonal deformation pattern primarily attributable to the solid earth...
